What would happen if I used a 60W MagSafe 2 power adapter on my MacBook Air? Also, would using a 45 W MagSafe 2 Power adapter harm a Mac Book Pro?
TIA for any help.
Welcome to Apple Support Communities
The MacBook Air uses a 45W power adapter and the MacBook Pro uses a 60W (13-inch) or 85W (15-inch and 17-inch) power adapter, so you can check this. If your friend only took the MagSafe cable (and not the power plug), it is the same one.
Thanks, I just realized that! ah! Would it harm either of our laptops if we accidentally switched power adapters/plugs?
Absolutely not. The only thing your friend may have seen is that his/her MacBook Pro took more time than usual to get the battery charged.
Thank you for your quick response! I appreciate your help!
You are welcome
•Find the right power adapter and cord for your Mac notebook - Apple Support
•Apple Portables: Troubleshooting MagSafe adapters - Apple Support
•45w MagSafe Power Adapter for MacBook Air (note type 2 vs original, for older model)
http://store.apple.com/us/product/MC747LL/A/apple-45w-magsafe-power-adapter-for- macbook-air
{You can see examples of all versions of official magsafe adapters at OWC macsales online}
There were some cautionary notes among the Support articles about using
incorrect adapter with versions of the MacBook builds, where not intended.
Just yesterday someone from Australia had query of MagSafe adapters and
my replies covered more thoroughly than question had asked.
In any event...
Good luck & happy computing! 🙂
Power adapters
